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Some KC prefixes are causing problems.
HMRC is aware that some National Insurance numbers (NINOs) with prefix ‘KC’ were issued recently and that these may be causing some problems for employers.
The numbers are valid and individuals receiving them should use them as normal.
If employers have problems when submitting real time information data for an employee with a KC number, the following steps should be taken:
- the NINO field should be left blank; and
- the employee address field should be completed.
There is no need for the employee to request a new National Insurance number.
